Japan’s No. 1 IP Game Platform Company

Welcome to the CTW careers page! We are Japan’s No. 1 IP game platform company, specializing in creating and distributing browser games. Join us and become part of a passionate tech team working on building cutting-edge technologies in the gaming industry.

We’re currently looking for talented frontend developers, backend developers, data engineers, Kubernetes engineers, Site Reliability Engineers, and MLOPs Engineers, along with various full-stack developers to join our team. There are non-tech careers available as well, so be sure to check out all our open roles as well!

Our work environment is fast-paced and dynamic, providing endless opportunities for growth and development. CTW is on the cutting edge of our browser gaming niche and we’re constantly pushing the boundaries of what’s possible.

You’ll be joining a collaborative and supportive environment in a growing tech team whose contributions are essential to our success!

See Open Roles

Japanese IP

We work with popular Japanese publishers (of hits like Goblin Slayer and Queen’s Blade) to turn their IP into exciting video game experiences on our G123 HTML5 platform.

CTW’s goals are to:

  • Spread Japanese culture to our players around the world
  • Make the best IP video game experience on any browser
  • Enrich the source material for each IP’s existing fanbase

Game Platform

G123 is essentially a game console that exists in your browser. Users can access the games on any browser-ready device, at the press of a button, whenever they want.

This is good for business because:

  • Players have an ever-growing variety of game experiences
  • Revenue and reach grow with every new game launch
  • No downloads, updates or installs slowing the fun

Creative Freedom for Developers

CTW’s tech team makes purpose-built tools to support every part of our business.

  • We recognize our all-star team
  • You take ownership of your work
  • We give you freedom to try and fail
  • So you can focus on value-based results

Feeling of Contribution

It’s tough to see the big picture at Microsoft, Amazon, Google or Meta. At CTW, devs don’t see the big picture. You make it.

  • You’ll be innovating and challenging the world of Big Tech.
  • You’ll design and see the impact of every tool you make.
  • You’ll set the standard that others will chase in the industry.

And all your mental resources can be dedicated to experimenting, exploring, and mastering your craft.

Succeed together, build bigger and better.

See Open Roles

We Rely on Motivation 3.0


If you read our Path to CTW blog, you’ll know things move fast here. Very fast. A new person — showing drive & ambition — can take sole ownership of a project at the end of their very first week! Some become team leaders in months. You can handle something; you take it over.


Here, you’ll be working with the best. And knowledge sharing is built in. You’ll quickly specialize in your area and learn concrete skills — exploring ever wider and deeper. Things that don’t work are dropped. Those that do are rewarded. Freedom to experiment drives self-learning. Self-learning and experience lead to mastery.


The nature of our business is fast. The size of our company means we’re agile. And so there’s a lot of collaboration among teams. You see how your work impacts every day and there’s never any doubt who did what. Drive is its own reward.

Voices of the Team

Read Our Path to CTW Blog


VP of Engineering

At CTW, I saw a good infrastructure, a strong & healthy globalizing business, and an excellent engineering team. My plan is to make the engineering culture even healthier here.

Read Full Interview


Tech Executive

When I joined, the infrastructure side of the company was a blank canvas. I redesigned everything and got to lay down the basis of the G123 game platform. There’s no feeling like having the platform you built deliver a dramatic change for the players.

Read Full Interview


Senior Data Scientist

As a data scientist, I’ve grown so much faster than I would have at another company. And I’ve learned a lot, both in my field and about leadership. I’ve been at the company for just over a year but I’m already leading my own team.

Read Full Interview


Your ambition is resilient against setbacks, failures, ambiguity – it makes you GROW


You take ownership of your task and dedicate yourself to it completely


Nature is pleased with simplicity and so are we – let’s keep it simple


Free lunch catering and early-bird breakfast

Great work-life balance: overtime is discouraged

Company insurance covers health, annuity, employment, work accidents

Paid holidays, public holidays, Golden Week, summer break, New Year

Housing allowance for staff living within two stops of the office

See Open Roles

Priority Tech Jobs

Front End Engineers

Frontend developers will have the opportunity to work on exciting projects that push the limits of web development. You’ll work closely with our designers and backend developers to create visually stunning and user-friendly tools and features on both our G123 game platform and internal business tools.


Backend Engineers

Backend developers will play a crucial role in developing and maintaining the infrastructure that powers our game platform and internal tools. You’ll have the opportunity to work with a variety of technologies and languages, including Python and Go.


Data Experts

Data engineers will be responsible for designing, building, and maintaining the data pipelines that fuel our business! You’ll work with big data technologies such as Scala to create efficient and robust data processing systems.


K8S Engineers

Kubernetes engineers will be responsible for designing and maintaining the container orchestration platform that powers our growing microservices architecture. You’ll work with cutting-edge Kubernetes technologies to ensure that our tools and platform are highly scalable and available.



Site Reliability Engineers will be responsible for ensuring that our systems are highly available, scalable, and secure. You’ll work closely with our app and data teams to implement best practices for monitoring, logging, and incident response.



Machine Learning Operations Engineers will be responsible for building and maintaining the infrastructure that powers our machine learning models. You’ll work with cutting-edge Kubernetes technologies to keep our models accessible and easy to use.